Watch incorporating a barometer



Nov. 24, 1964 w. ZENGER WATCH INCORPORATING A BAROMETER 2 Sheets-Sheet 1 Filed Feb. 8, 1962 F/GZ Nov. 24, 1964 w. ZENGER 3,157,935

WATCH INCORPORATING A BAROMETER Filed Feb. 8, 1962 2 Sheets-Sheet 2 United States Patent 3,157,985 WATCH INCORPORATING A BAROMETER Willy Zenger, La Chaux-de-Fonds, Switzeriand, assignor to Holding Fayre Leuba S.A., Zug, Switzerland, :1 Swiss company Filed Feb. 8, 1962, Ser. No. 172,001 Claims priority, application Switzerland, Feb. 11, 1961, 1,645/ 61 1 Claim. (Cl. 58-452) My invention has for its object a watch incorporating an aneroid barometer. According to my invention, the barometer box is secured through its central section to a central boss formed on the inner surface of the bottom of the watch case.

I have illustrated by way of example in the accompanying drawing, a preferred embodiment of my invention. In said drawings:

FIG. 1 is an elevational partly sectional view of the Watch and barometer assembly,

FIG. 2 is a plan view thereof,

FIG. 3 is a plan view of the casing of the transmitting mechanism,

FIGS. 4, i and 6 are cross-sections of FIG. 3 through lines IV-IV, VV and VIVI respectively,

FIG. 7 is a side view of the lever forming part of said mechanism.

The watch illustrated includes a case of which the bottom 1 alone has been illustrated; inside said case is fitted the box of the aneroid barometer including conventionally a corrugated wall 2 welded along its inner edges to two central webs 3 and 4. The lower web 4 is provided with a tenon 5 screwed into the bottom of the watch case; 6 designates a packing and 7 a flat coverplate. Above the box 2, is inserted a casing 8 enclosing the mechanism providing for the transmission between the barometer case and the cooperating indicating hand 9; above said casing 8 is located the actual watch movement 10.

The mechanism carrying casing 8 includes a body 8a closed by an upper plate 8b; the casing body So: is illustrated in plan view as seen from above in FIG. 3 and FIGS. 4, 5, 6 are cross-sections through lines IV-IV, VV and VIVI of FIG. 3. To the bottom of the body 3a and outside the latter is pivotally secured at 12 a lever 13 illustrated separately in FIG. 7, and engaging through its projection 13a the upper surface of the barometer box 2. The free end of said lever 13 acts on one of the arms 14a of the lever 14 pivotally secured at 14b inside the mechanism casing projecting through an opening in the latter and adapted to rock in a vertical plane perpendicular to the longitudinal axis of the lever 13 (FIG. 6).

3,157,985 Patented Nov. 24, 1964 The lever 14 is provided with a second arm 14c which engages a port provided at 15 in the toothed wheel 16. The latter meshes with a pinion 17 rigid with a spindle 18 carrying the indicator hand 9 and subjected to the action of a return coil spring 19. The spindle 18 rotates after the manner of the spindle carrying a center seconds hand inside a sleeve or pipe which is not illustrated and which carries the minute hand of the watch movement 10. The barometer hand 9 moves over a dial, not illustrated, which carries a scale of altitudes corresponding to the pressures to which the barometer is subjected at any point where the watch bearer is standing.

The coil spring 19 has a tendency to urge permanently the Wall of the port 15 in the wheel 16 against the arm of the lever 14. When the altitude decreases, the barometer casing 2 has a tendency to contract and the wheel 16 under the action of the coil spring 19 turnsiso as to shift the lever 14 and to hold the latter in contact with the lever 13. When the altitude increases, the operation is performed in the opposite manner against the spring 19.

What I claim is:

In combination with a watch movement and an aneroid barometer casing, the provision. of a case enclosing the movement and the barometer casing in superposed relationship and including a bottom the central section of which is of an increased thickness and is tapped axially throughout, a connection between the barometer casing and the enclosing case, including a threaded cylindrical tenon raised axially on the outer surface of the lower Wall of said casing and screwed into the tapped central section of the case bottom and a packing surrounding said tenon and fitted between the casing and the central section of the case bottom, and a flat cover-plate extending over the outer end of the tapping in said central section.

References Cited by the Examiner UNITED STATES PATENTS 1,377,032 5/21 Starling et al. 73387 1,913,481 6/33 Gody 58--126 X 2,246,741 6/41 Loen 73-387 X 2,327,394 8/43 Bevins 73387 FOREIGN PATENTS 59,230 6/63 France. 644,667 5/37 Germany.

4,225 12/91 Switzerland. 3 24,756 11/5 7 Switzerland.

LEO SMILOW, Primary Examiner.

JOSEPH P. STRIZAK. ROBERT L. EVANS. Examiners. 

